Drilling mechanism

ABSTRACT

A drilling-conveying apparatus for the layout and fabrication of structural beams and girders comprising, dual mobile opposite hand co-ordinated drilling-conveying units, mounted on a common longitudinal supporting-guiding track and symmetrically spaceable thereon to any selected lateral spacing by a common right and left threaded relocating shaft, oppositely threaded through the bases of the said dual opposed units and longitudinally restrained by a mid-located floor-mounted anchor-bearing located between the rails of the said track, with the operating faces of the said units facing inwardly towards said anchor-bearing, each of said co-ordinated units having an integral vertical wall on the outer end of said base, vertically guiding a low elevateable transversely-extending platen supporting and guiding transversely convergible dual drill heads holding plural horizontal drills for simultaneously drilling both shape flanges and an adjustableheight vise to locate, elevate and hold a raw shape for precise drilling, a longitudinal ram projectible through said wall to length-center shapes between said dual units, a stationary forwardly-overhung drill head with transversely-disposed plural vertical drills for simultaneous drilling of the shape web, an integral transversely-operable multiple-strand chain-link conveyor means to transport the shapes forwardly into and out of the operating area, and powered moving, elevating, rotating, operating and control means.

United States Patent [151 3,687,563 McConnell Aug. 29, 1972 [54]DRILLING MECHANISM [57] ABSTRACT [72] Inventor: John R. McConnell, 148Woodside Ave., Ridgewood, NJ. 07450 [22] Filed: May 19, 1970 [21] Appl.No.: 38,669

Related U.S. Application Data [63] Continuation-in-part of Ser. No.737,654, June 17, 1968, Pat. No. 3,546,772.

[52] U.S. Cl. ..408/39, 408/46, 408/50, 408/236 [51] Int. Cl ..B23b39/22, B23b 41/00 [58] Field of Search ..408/39, 40, 41, 46, 49, 50,408/52, 36, 37, 38, 236, 237, 238

[56] References Cited UNITED STATES PATENTS 754,321 3/1904 Koeppen..408/37 3,094,015 6/1963 Mead ..408/39 X 1,734,523 11/1929 Klausmeyer..408/237 2,945,402 7/1960 Burg ..408/237 1,793,239 2/ 1931 Miner..408/49 Primary Examiner-Francis S. Husar A drilling-conveyingapparatus for the layout and fabrication of structural beams and girderscomprising, dual mobile opposite hand co-ordinated drillingconveyingunits, mounted on a common longitudinal supporting-guiding track andsymmetrically spaceable thereon to any selected lateral spacing by acommon right and left threaded relocating shaft, oppositely threadedthrough the bases of the said dual opposed units and longitudinallyrestrained by a mid-located floor-mounted anchor-bearing located betweenthe rails of the said track, with the operating faces of the said unitsfacing inwardly towards said anchor-bearing, each of said co-ordinatedunits having an integral vertical wall on the outer end of said base,vertically guiding a low elevateable transversely-extending platensupporting and guiding transversely convergible dual drill heads holdingplural horizontal drills for simultaneously drilling both shape flangesand an adjustable-height vise to locate, elevate and hold a raw shapefor precise drilling, a longitudinal ram projectible through said wallto length-center shapes between said dual units, a stationaryforwardly-overhung drill head with transversely-disposed plural verticaldrills for simultaneous drilling of the shape web, an integraltransversely-operable multiple-strand chain-link conveyor means totransport the shapes forwardly into and out of the operating area, andpowered moving, elevating, rotating, operating and control means.

25 Claims, 13 Drawing Figures PATENTEDwczs I972 SHEET 1 BF 3 IZ'IiZIIt-I t i 5m x 1 wig/6 INVENTOR.

DRILLING MECHANISM This application is a continuation-in-part ofco-pending application Ser. No. 737,654 of June 17, 1968, now processU.S. Pat. No. 3,546,772 of Dec. 15, 1970.

This invention relates to drilling mechanism units.

An objective is to provide co-ordinated plural drilling units to drillthe web and/or flanges of structural building shapes at various selectedpoints on their lengths Another objective is to employ and operate theseunits simultaneously in a co-ordinated spaced plural longitudinalpattern as shown in the layouts of the parent process U.S. Pat. Nos.3,546,772 and 3,606,658 with the work material moving transversely andconsecutively into and beyond them to discharge in the transversedirection, although the various drilling units in some cases may beadvantageously used singly.

It is also an objective to provide necessary integrated work conveyormeans usually used dually.

A further objective is to provide adjustable mechanisms that willaccommodate all lengths, depths, sizes and weights of structural shapes.

For other objectives and a better understanding of the inventionreference may be had to the following detailed description taken inconjunction with the accompanying drawing showing typical application inwhich:

FIG. 1 is a plan view of an end operating flange drill.

FIG. 2 is a front elevation of said drill unit.

FIG. 3 is a front elevation of the shape clamping element.

FIG. 4 is an end elevation of an intermediately operating flange drill.

FIG. 5 is a side view of the intermediate flange drill.

FIG. 6 is an end view of a radially depressible intermediate web drill.

FIG. 7 is a side view of the said radially depressible web drill.

FIG. 8 is a double station flange and web combination drill.

FIG. 9 is a front elevation of an end operating combined web and flangedrill.

FIG. 9a is an alternative web drill mechanism for FIG. 9.

FIG. 9b is a second alternative web drill mechanism for FIG. 9.

FIG. 10 is a side view of the combined drill taken on FIG. 9.

FIG. 10a is a side view of the alternative mechanism of FIG. 9

FIG. 1-3 shows a mobile base 1 with integral back wall 2 mounted onwheels 3 operating in floor mounted angles 4 clamped to a centeredposition by a vise 5 on a guiding tee 6. A power 7 elevatable horizontalplaten 8 tee-keyed 9 to the forward side of the wall mounts dualtransversely convergible drilling mechanisms 10 carrying plural dualvariable-center drill spindles and chucks 11 for the drilling of thevertical shape 12 flanges 13. Mechanism 10 are converged by powered 14speedreduction gear boxes 15 through a right and left common threadedshaft 16. A powered 17 multiple strand endless shape conveyor belt 18mounted above the tee of the base 1 forwards the raw shape 12 into theoperating area against an adjustable depressible locating tab 19detailed in FIG. 10 as item 61. Platen 8 is raised by screw 20 and jawsof vice 21 are slightly closed against shape by right and left threadedshaft 22 as powered 23 horizontal ram 24 is forwarded to correctlylocate end of shape longitudinally in relation to the horizontal drills25. Replaceable various-diameter discs 26 are inserted in the insidetongues of vise to vertically place the center-line of web precisely atthe mid-center height of the dual drills and to permit smooth easy shapemovement. The dual vise is then tightened. Platen stop and shaft 20bracket is shown at 26'. Extended front part of platen is at 27.Additional floor angles 4' permit the substitution of double stationfabricators typical of FIG. 8.

FIG. 4-5 shows end and side views of an abbreviated version of FIG. 1-3for the drilling of one flange of the shape intermediate of the endsthereof. These holes are required in certain members for the attachmentof masonry-supporting spandrel angles, monorails or brackets. Thepowered drill mechanism 10 with speed and feed change lever 28 canaccommodate a replaceable drill box 29 with any required number ofhorizontally or vertically spaced drill bits 25. An adjustable feelerrod 30 wired to the motor 7 of shaft 20 slows and stops the upwardtravel of platen 8 to the proper height regardless of the sagging, windor camber of the shape. A motor 31 geared 32 to the back axle propelsthe unit to the proper pre-locatable position, having a lever 33 toshift power to either wheel for steering on the general floor leveloutside of the trench.

FIG. 6 & 7 show an end and side view of a radially depressible drillpress 34 for the web drilling of the shape intermediate of the endsthereof, and on the depressing of the upper drill post 35 by gearedmotor 51 and shaft 39 to permit the transverse overhead passage of theshape. It comprises a wheel mounted base 36 with short side-mounteddrill post 38 journalling 39 the upper extending drill post 35 thatcarries a powered downwardly projectable counter weighted 37 drill-headbox 40 with plural drill spindles and drills 25. Meter 41 and. screw 42moves the overhanging bracket 43. Contact arm 44 through contacts 45 and46 revolves post 35 from stop 47 to cushioning piston 48. Hand wheel 31propels the unit. Counter weight 49 steadies against swing of drill-head43. Motor 51 powers the rotatable journalled shaft 39.

FIG. 8 combines the flange and web drilling apparatus of FIG. 4 and 6 ina doubled station apparatus on the widened two rail 52 track.

FIG. 910 show respectively an end and side view of an end-operatingcombined flange and web drilling unit 53 mounted on rails 52, comprisinga forwardly projecting base I back wall 2 and bracket 54 supporting aforwardly-extended vertical web-drilling mechanism. Shaft 55 pre-locatesthe unit by means of the powered shaft threaded through the base. On thefront of base dual posts 56 support a frame 57 around which thechain-link shape conveyor belt 18 travels powered by motor and speedreducer 58. On the rear of the conveyor frame a hand wheel 59 and screwadjust the solenoid mounting 60 with step-tab 61 to locate the variousdepths of shapes in proper relation to the multiple drill spindles 62 byinterrupting the current to the conveyor belt meter. On the upperbracket plural fluid cylinders, piston, and piston rods 63 verticallyproject the drills against the shape web. Non-rotatable piston rods areconnected to a vertical guide 64, tee-keyed to the wall of the bracketwith drill spindles connected to the guide. Splined drill spindles 65extend through gear box 66 and are rotated by gears meshing with pluralgears on the common gear box drive shaft 67 that is powered 12'. Withshape transversely conveyed to the fabricating position under thedrills, the matched and synchronized motors 70 on the rear back walls 2of the opposed end units 53, through the speed reducer gear boxes 71,equally project the length-centering rams 24 against the opposite shapeends. The resistance when shape is length-centered stops the motors.Longitudinally adjustable dual pointers 72 in the top of the squareshaft of rams indicate visually to scale if the overall length of shapefalls within the permissible tolerance for maximum and minimum length ofthe member.

A wide transverse platen 8 tee-keyed 9 to the front of the back wall(shown in FIG. 2) is elevatable vertically above the base by a motorizedthreaded shaft 20. Opposed two spindle adjustable center horizontaldrill mechanism 73 (shown at right) tee-keyed 74 into the horizontalupper surface of the platen are transversely convergible by motorizedright and left threaded shaft 22 to drill the intermediately locatedshape flange 12. An alternate type of replaceable drill box 75 with anynumber of plural drills 25 on fixed centers is shown at the left. It isbolted to the primary geared power drive box that has a gear lever 76for various speeds and feeds. An adjustable stop 26' limits the upwardplaten travel. FIG. 9b illustrates the shape vise 21 FIG. 9a and 10ashow an alternate arrangement of the drill box that is projected as aunit by motor-speedreducer 77 employing long and short drills 25 and 25that economize in the elimination of gear changes for feed and speed.

FIG. 9b shows a simplified fixed drill head for maximum ruggedness andeconomy with elimination of much mechanism. Instead of the platen front27 and vise 21' lifting the shape 12 just clear of the conveyor belt andthe drills then being projected down to the shape web for drilling ofsame, the platen and vise raise the shape thefull height to permit thefixed drills to pierce the web. The horizontal drills fixed to theplaten 8 function as before; illustrated in FIG. 10. The vise is aninternal two-tongued vise 21 rather than four-tongued as shown in FIG.3. It is set symmetrically on the operating center-line of the unit andas holes are seldom drilled symmetrically in the web, it usesreplaceable spacing blocks 78 on either tongue to properly offset theholes as required.

This group of related mechanisms have been intended and designed forco-ordinate use in co-operating plural numbers, as shown in the lay-outsof the parent co-pending process application Ser. No. 737,654 of June17, 1968 now Pat. No. 3,546,772 of Dec. 15, 1970 and an accompanyingcontinuation-inpart process application Ser. No. 737,786 now US. Pat.No. 3,543,374 filed simultaneously with this application in addition toPat. No. 3,606,658 previously referred to. The end operating units wouldgenerally be used dually opposite-hand while the intermediate operatingunits can be used singly, dually or in plural numbers. Reference isrespectfully directed to the above mentioned patents.

In this application the words given below shall have the definitions aslisted:

shape or raw shape a length of unfabricated steel,

generally hot-rolled, of I or H cross-section suitable for fabricationas a floor member,

member a shape that has been generally completely fabricated (drilled),ready for assembly-erection on a construction site, random lengthsshapes of ordered length falling within a one-half inch length toleranceplus or minus,

working-length the distance between the centers of the end holes of adrilled member,

perforate to drill (or bore) completely through work'material in onecontinuous action,

fabricate to perform drilling and/or of the mechanical operations on alength of shape in the preparation of a member,

longitudinal parallel to the longitudinal center-line of the structuralshapes (work material) to be drilled transverse perpendicular to thelongitudinal center'lines of the said shapes,

drill head & drill box a powered geared mechanism for the simultaneousplural drilling of a shape by spaced plural drill bits held in plurallyactuated spindles,

drilling mechanism a completely integrated and constituted drilling unitthat may also include a shape-conveying means.

What I claim as new and desired to protect by Letters Patent of theUnited States is: i

1. A drilling mechanism for structural shapes comprising an integralbase and back wall supporting a forwardly-hung power-elevatablehorizontal platen mounting dual transverse symmetrically-convergiblepowered drilling heads carrying spaced plural drills for thesimultaneous transverse perforating of both vertical flanges of theshape near the end.

2. A drilling mechanism as in claim 1 further comprising, an integralforwardly mounted powered transversely-operable shapeconveyor belt fortransverse, forward movement of the shape into and out of thefabricating area.

3. A drilling mechanism as in claim 2 further comprising, a poweredlongitudinal forwardly-projectible shape-locating r'arn extendingthrough said back wall to properly locate the end of the shape withinrelation to the said drills.

4. A drilling mechanism as in claim 3 further comprising, a transverselyadjustable four pronged shape vise having projecting replaceablerollable discs of various diameters to vertically locate and lock thehorizontal center line of web at the mid-height center-line of thepaired said plural horizontal drills.

5. A drilling mechanism as in claim 4 further comprising base wheels alongitudinal track guiding means and self-powered pre-locatingpropulsion means.

6. An under-slung flange drilling mechanism com prising a mobile basehaving an integral vertical guiding wall for, an elevatable transverselyand forwardly-hung horizontal platen carrying a poweredtransversely-projectible, multiple-spindle drilling mechanism head forthe drilling of one flange of a shape intermediate of the ends thereof.

7. A flange drilling mechanism as in claim 6 further comprising asupporting-guiding track, self powered base propulsion means and aplaten height-controlling web-contacting means.

8. A shape-web drilling mechanism comprising a mobile base having anintegral short vertical post transversely power pivoting a shaft-mountedvertical upper drill post carrying an overhung downwardly projectibledrill box having powered plural drill spindles for the selectibledrilling of various dimensions of shape webs, whereby the erectedmechanism drills the shape web intermediate of the ends and retracts theupper assembly downwardly in a transverse vertical arc to permit thetransverse forwarding of the over-head located completed member.

9. A combined double-station web and flange drilling mechanismcomprising in combination the following means;

a mobile common base having guiding and propulsion means,

a transverse power-elevatable platen carrying a powered horizontaldrilling head for the initial flange drilling of a structural shape anda powered overhung web-drilling means vertically power-depressible on apost which is arcuately power-pivotable on a short base-mounted post,

for the co-ordinated simultaneous selective drilling of shapes ofvarious dimensions and the successive downward arcing of the upperassembly out of the operating area for the forward transverse passage ofthe shape.

10. A drilling mechanism for structural shapes comprising in combinationthe following means, an integral base and back wall, a forwardly-hungtransverse powerelevateable horizontal platen mounting a shape vise, anoverhead forwardly-hung powered drill box having plural vertical powereddrill spindles and drills for the simultaneous plural perforating ofshape webs of various widths by elevation of the shape against the saiddrills by said vise and an integral forwardly-located base-mountedtransversely operable powered shapeconveyor belt for consecutive forwardtransverse movement of shapes into and out of the fabricating area.

11. A drilling mechanism as in claim 10 further comprising, dualtransverse symmetrically-convergible powered drilling heads on the saidplaten carrying paired plural drills for the simultaneous transverseperforating of the vertical flanges of the shape.

12. A drilling mechanism as in claim 11 further comprising, a poweredlongitudinal forwardly-projectible shape locating ram extending throughsaid back wall to properly locate the end of the shape with relation tothe said drills.

13. A drilling mechanism as in claim 12 further comprising, a guidingsupporting means and pre-locating propulsion means.

14. A drilling mechanism as in claim 13, further comprising, short andlong shank vertical drills for power conservation and mechanicalsimplicity, insertable replaceable roller discs of various diameters intops of said vise jaws to locate the horizontal web center-line atmid-height center of said paired horizontal drills, replaceable spacerblocks of variable width on said vise jaws to locate shape eccentric tothe said vertical drills, dual indicator tabs on said ram to checklongitudinal location of shape and adjustable shape stop tab on conveyorframe to arrest transverse movement of shape.

15. A drilling mechanism as in claim 12 further comprising, a powereddown wardly projectible drill box with plural drill spindles and drillsof varied lengths which are projected as a unit to simultaneously drillthe shape as required.

16. A drilling mechanism as in claim 12 further comprising a poweredvertical drilling means in which selected plural drills in variousnumbers and patterns are downwardly power projected to simultaneouslydrill the shape web.

17. A drilling-conveying apparatus for the layout and fabrication ofstructural beams and girders comprising, dual mobile opposite-handco-ordinated drilling-conveying units, mounted on a common longitudinalsupporting-guiding track and symmetrically spaceable thereon to anyselected lateral spacing by a common right and left threaded relocatingshaft, oppositely threaded through the bases of the said dual opposedunits and longitudinally restrained by a mid-located floor-mountedanchor-bearing located between the rails of the said track, with theoperating faces of the said units facing inwardly towards saidanchor-bearing, each of said co-ordinated units having an integralvertical wall on the outer end of said base, vertically guiding a lowelevateable transversely-extending platen supporting and guidingtransversely convergible dual drill heads, holding plural horizontaldrills for simultaneously drilling both shape flanges and anadjustableheight vise to locate, elevate and hold a raw shape forprecise drilling, a longitudinal ram, projectible through said wall tolength-center shapes between said dual units, a stationaryforwardly-overhung drill head with transversely-disposed plural verticaldrills for simultaneous drilling of the shape web, an integraltransversely-operable multiple-strand chain-link conveyor means totransport the shapes forwardly into and out of the operating area, andpowered moving, elevating, rotating, operating and control means.

18. A drilling-conveying apparatus as in claim 17 further comprising,co-ordinated dual mobile drill presses symmetrically spaced andrespaceable from the said central anchor-bearing and within theouterlocated said units, on said common track by a separate similarright and left threaded relocating shaft threaded through the bases ofsaid drill presses, each of said coordinated drill presses having amobile base with integral short post, pivoting in a transverse verticalarc a shaft-mounted vertical upper drill post carrying transverselydisposed vertical plural drills, for the selectable simultaneousdrilling of various dimensions of shape webs intermediate of the ends bythe erected said drill means, which is then retracted downwards belowthe level of the shape on the said conveyors, for the continued forwardpassage of the completely fabricated member and additional poweredinterlocked operating means.

19. A drilling-conveying apparatus as in claim 17 further comprising,co-ordinated dual elevateable underslung drill means, symmetricallyre-Spaceable from the said central anchor-bearing and within theouterlocated said units on said common track, by a separate similarright and left threaded relocating shaft oppositely threaded through thebases of the said underslung drill means, each of said co-ordinatedunderslung drill means having a mobile base with short integraltransverse wall, mounting and vertically guiding an elevateabletransversely-extending platen carrying and transversely guiding a drillhead with plural horizontal drills, for the precise plural drilling ofthe adjacent vertical flange of the shape intermediate of the endsthereof, an adjustable height web feeler attached to the said platen forvertical centering of said horizontal drills, and additional poweredinterlocked operating means. a

20. A drilling-conveying apparatus for the layout and fabrication ofstructural beams and girders comprising, dual mobile opposite-handco-ordinated drilling-conveying units mounted in a common longitudinalsupporting-guiding means and laterally spaceable therein to any requiredspacing, with the operating faces of said units facing inwardly to eachother, each of said co-ordinated units having an integral vertical wallon the outer end of a wheel-equipped base, which is fitted with a visefor locking said unit on a transversely-centered floor-anchoredlongitudinal rail, the said wall vertically guiding a low elevatabletransversely-extending platen, supporting and guiding transverselyconvergible dual drill heads holding plural horizontal drills, forsimultaneously drilling both shape flanges, an adjustableheight vise tolocate, elevate and hold a raw shape for precise drilling, alongitudinal rain projectible through said wall to length-center shapesbetween said dual units, a transversely-operable multiple-strandchainlink conveyor means to transport the shapes forwardly into and outof the operating area and powered moving, elevating, rotating, operatingand control means.

21. A drilling-conveying apparatus as in claim 20 further comprising,co-ordinated dual mobile drill presses laterally spaceable between theouter-located said dual units in the said common supporting guidingmeans, each of said co-ordinated drill presses having a mobile base withlocation-locking vise operable on said anchor rail, said base having anintegral short post pivoting in a transverse vertical arc ashaft-mounted vertical upper drill post, carrying transversely disposedvertical plural drills for the selectable simultaneous drilling ofvarious dimensions of shape webs, intermediate of the ends by theerected said drill means, which is then retracted downwards below thelevel of the shape on the said conveyors, for the continued forwardpassage of the completely fabricated member and additional poweredinterlocked operating means.

22. A drilling mechanism for structural shapes comprising an integralbase and vertical back wall, supporting and vertically guiding a lowtransverse forwardly hung power-elevatable horizontal platen, for themounting and transverse symmetrical powered guidance of dual opposedtransversely-spaced symmetrically-convergible powered drilling heads,carrying precisely-spaced plural horizontal drills, for the transvprsesimultaneous srforating of both verti al flangeg o the shape near e end,and an integra powere transversely-operable shape-conveyor belt mountedabove the forward toe of said base, for the successive straight-linetransverse movement of the shape into and out of the drilling area.

23. A drilling mechanism as in claim 22 further comprising, a poweredlongitudinal forwardly-projectible shape-locating ram extending throughthe said back wall, to dimensionally locate the end of the shape withrelation to the said drills.

24. A drilling mechanism as in claim 23 further comprising, atransversely-convergible shape vise having replaceable rollable discs ofvarious diameters in the tops of the inner tongues of the jaws, tovertically locate and lock the horizontal. center-line of the web ofshape at the center-line of the paired said plural drills, to permitsmooth minor length-wise adjustment of the shape and to rigidly hold theshape for drilling.

25. A drilling mechanism for structural shapes comprising, an integralbase and back-wall supporting and vertically guiding an overhungforwardly-mounted drill head, downwardly projectible by power means,said drill head carrying plural vertical transversely-disposed powereddrill bits for the simultaneous multiple perforating of the web of ashape, an integral powered transversely-operable shape-conveyor beltmounted above the forward toe of said base, for the successivestraight-line forward transverse movement of the shape into and out ofthe drilling area, and a powered longitudinal shape-locating ramextending through the said back wall to dimensionally locate the end ofthe shape with relation to the said drills.

1. A drilling mechanism for structural shapes comprising an integralbase and back wall supporting a forwardly-hung powerelevatablehorizontal platen mounting dual transverse symmetrically-convergiblepowered drilling heads carrying spaced plural drills for thesimultaneous transverse perforating of both vertical flanges of theshape near the end.
 2. A drilling mechanism as in claim 1 furthercomprising, an integral forwardly mounted powered transversely-operableshape-conveyor belt for transverse, forward movement of the shape intoand out of the fabricating area.
 3. A drilling mechanism as in claim 2further comprising, a powered longitudinal forwardly-projectibleshape-locating ram extending through said back wall to properly locatethe end of the shape within relation to the said drills.
 4. A drillingmechanism as in claim 3 further comprising, a transversely adjustablefour pronged shape vise having projecting replaceable rollable discs ofvarious diameters to vertically locate and lock the horizontalcenter-line of web at the mid-height center-line of the paired saidplural horizontal drills.
 5. A drilling mechanism as in claim 4 furthercomprising base wheels a longitudinal track guiding means andself-powered pre-locating propulsion means.
 6. An under-slung flangedrilling mechanism comprising a mobile base having an integral verticalguiding wall for, an elevatable transversely and forwardly-hunghorizontal platen carrying a powered transversely-projectible,multiple-spindle drilling mechanism head for the drilling of one flangeof a shape intermediate of the ends thereof.
 7. A flange drillingmechanism as in claim 6 further comprising a supporting-guiding track,self powered base propulsion means and a platen height-controllingweb-contacting means.
 8. A shape-web drilling mechanism comprising amobile base having an integral short vertical post transversely powerpivoting a shaft-mounted vertical upper drill post carrying an over-hungdownwardly projectible drill box having powered plural drill spindlesfor the selectible drilling of various dimensions of shape webs, wherebythe erected mechanism dRills the shape web intermediate of the ends andretracts the upper assembly downwardly in a transverse vertical arc topermit the transverse forwarding of the over-head located completedmember.
 9. A combined double-station web and flange drilling mechanismcomprising in combination the following means; a mobile common basehaving guiding and propulsion means, a transverse power-elevatableplaten carrying a powered horizontal drilling head for the initialflange drilling of a structural shape and a powered overhungweb-drilling means vertically power-depressible on a post which isarcuately power-pivotable on a short base-mounted post, for theco-ordinated simultaneous selective drilling of shapes of variousdimensions and the successive downward arcing of the upper assembly outof the operating area for the forward transverse passage of the shape.10. A drilling mechanism for structural shapes comprising in combinationthe following means, an integral base and back wall, a forwardly-hungtransverse power-elevateable horizontal platen mounting a shape vise, anoverhead forwardly-hung powered drill box having plural vertical powereddrill spindles and drills for the simultaneous plural perforating ofshape webs of various widths by elevation of the shape against the saiddrills by said vise and an integral forwardly-located base-mountedtransversely operable powered shape-conveyor belt for consecutiveforward transverse movement of shapes into and out of the fabricatingarea.
 11. A drilling mechanism as in claim 10 further comprising, dualtransverse symmetrically-convergible powered drilling heads on the saidplaten carrying paired plural drills for the simultaneous transverseperforating of the vertical flanges of the shape.
 12. A drillingmechanism as in claim 11 further comprising, a powered longitudinalforwardly-projectible shape locating ram extending through said backwall to properly locate the end of the shape with relation to the saiddrills.
 13. A drilling mechanism as in claim 12 further comprising, aguiding supporting means and pre-locating propulsion means.
 14. Adrilling mechanism as in claim 13, further comprising, short and longshank vertical drills for power conservation and mechanical simplicity,insertable replaceable roller discs of various diameters in tops of saidvise jaws to locate the horizontal web center-line at mid-height centerof said paired horizontal drills, replaceable spacer blocks of variablewidth on said vise jaws to locate shape eccentric to the said verticaldrills, dual indicator tabs on said ram to check longitudinal locationof shape and adjustable shape stop tab on conveyor frame to arresttransverse movement of shape.
 15. A drilling mechanism as in claim 12further comprising, a powered down wardly projectible drill box withplural drill spindles and drills of varied lengths which are projectedas a unit to simultaneously drill the shape as required.
 16. A drillingmechanism as in claim 12 further comprising a powered vertical drillingmeans in which selected plural drills in various numbers and patternsare downwardly power projected to simultaneously drill the shape web.17. A drilling-conveying apparatus for the layout and fabrication ofstructural beams and girders comprising, dual mobile opposite-handco-ordinated drilling-conveying units, mounted on a common longitudinalsupporting-guiding track and symmetrically spaceable thereon to anyselected lateral spacing by a common right and left threaded relocatingshaft, oppositely threaded through the bases of the said dual opposedunits and longitudinally restrained by a mid-located floor-mountedanchor-bearing located between the rails of the said track, with theoperating faces of the said units facing inwardly towards saidanchor-bearing, each of said co-ordinated units having an integralvertical wall on the outer end of said base, vertically guiding a lowelevateable transversely-extending platen supporting and guidingtransversely cOnvergible dual drill heads, holding plural horizontaldrills for simultaneously drilling both shape flanges and anadjustable-height vise to locate, elevate and hold a raw shape forprecise drilling, a longitudinal ram, projectible through said wall tolength-center shapes between said dual units, a stationaryforwardly-overhung drill head with transversely-disposed plural verticaldrills for simultaneous drilling of the shape web, an integraltransversely-operable multiple-strand chain-link conveyor means totransport the shapes forwardly into and out of the operating area, andpowered moving, elevating, rotating, operating and control means.
 18. Adrilling-conveying apparatus as in claim 17 further comprising,co-ordinated dual mobile drill presses symmetrically spaced andrespaceable from the said central anchor-bearing and within theouter-located said units, on said common track by a separate similarright and left threaded relocating shaft threaded through the bases ofsaid drill presses, each of said co-ordinated drill presses having amobile base with integral short post, pivoting in a transverse verticalarc a shaft-mounted vertical upper drill post carrying transverselydisposed vertical plural drills, for the selectable simultaneousdrilling of various dimensions of shape webs intermediate of the ends bythe erected said drill means, which is then retracted downwards belowthe level of the shape on the said conveyors, for the continued forwardpassage of the completely fabricated member and additional poweredinter-locked operating means.
 19. A drilling-conveying apparatus as inclaim 17 further comprising, co-ordinated dual elevateable underslungdrill means, symmetrically re-spaceable from the said centralanchor-bearing and within the outer-located said units on said commontrack, by a separate similar right and left threaded relocating shaftoppositely threaded through the bases of the said underslung drillmeans, each of said co-ordinated underslung drill means having a mobilebase with short integral transverse wall, mounting and verticallyguiding an elevateable transversely-extending platen carrying andtransversely guiding a drill head with plural horizontal drills, for theprecise plural drilling of the adjacent vertical flange of the shapeintermediate of the ends thereof, an adjustable height web feelerattached to the said platen for vertical centering of said horizontaldrills, and additional powered interlocked operating means.
 20. Adrilling-conveying apparatus for the layout and fabrication ofstructural beams and girders comprising, dual mobile opposite-handco-ordinated drilling-conveying units mounted in a common longitudinalsupporting-guiding means and laterally spaceable therein to any requiredspacing, with the operating faces of said units facing inwardly to eachother, each of said co-ordinated units having an integral vertical wallon the outer end of a wheel-equipped base, which is fitted with a visefor locking said unit on a transversely-centered floor-anchoredlongitudinal rail, the said wall vertically guiding a low elevatabletransversely-extending platen, supporting and guiding transverselyconvergible dual drill heads holding plural horizontal drills, forsimultaneously drilling both shape flanges, an adjustable-height vise tolocate, elevate and hold a raw shape for precise drilling, alongitudinal ram projectible through said wall to length-center shapesbetween said dual units, a transversely-operable multiple-strandchain-link conveyor means to transport the shapes forwardly into and outof the operating area and powered moving, elevating, rotating, operatingand control means.
 21. A drilling-conveying apparatus as in claim 20further comprising, co-ordinated dual mobile drill presses laterallyspaceable between the outer-located said dual units in the said commonsupporting guiding means, each of said co-ordinated drill presses havinga mobile base with location-locking vise operable on said anchor rail,said base having an integral short post pivoting in a transversevertical arc a shaft-mounted vertical upper drill post, carryingtransversely disposed vertical plural drills for the selectablesimultaneous drilling of various dimensions of shape webs, intermediateof the ends by the erected said drill means, which is then retracteddownwards below the level of the shape on the said conveyors, for thecontinued forward passage of the completely fabricated member andadditional powered interlocked operating means.
 22. A drilling mechanismfor structural shapes comprising an integral base and vertical backwall, supporting and vertically guiding a low transverse forwardly hungpower-elevatable horizontal platen, for the mounting and transversesymmetrical powered guidance of dual opposed transversely-spacedsymmetrically-convergible powered drilling heads, carryingprecisely-spaced plural horizontal drills, for the transversesimultaneous perforating of both vertical flanges of the shape near theend, and an integral powered transversely-operable shape-conveyor beltmounted above the forward toe of said base, for the successivestraight-line transverse movement of the shape into and out of thedrilling area.
 23. A drilling mechanism as in claim 22 furthercomprising, a powered longitudinal forwardly-projectible shape-locatingram extending through the said back wall, to dimensionally locate theend of the shape with relation to the said drills.
 24. A drillingmechanism as in claim 23 further comprising, a transversely-convergibleshape vise having replaceable rollable discs of various diameters in thetops of the inner tongues of the jaws, to vertically locate and lock thehorizontal center-line of the web of shape at the center-line of thepaired said plural drills, to permit smooth minor length-wise adjustmentof the shape and to rigidly hold the shape for drilling.
 25. A drillingmechanism for structural shapes comprising, an integral base andback-wall supporting and vertically guiding an overhungforwardly-mounted drill head, downwardly projectible by power means,said drill head carrying plural vertical transversely-disposed powereddrill bits for the simultaneous multiple perforating of the web of ashape, an integral powered transversely-operable shape-conveyor beltmounted above the forward toe of said base, for the successivestraight-line forward transverse movement of the shape into and out ofthe drilling area, and a powered longitudinal shape-locating ramextending through the said back wall to dimensionally locate the end ofthe shape with relation to the said drills.